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AC POWER LINE SPD TEST CERTIFICATION REQUIREMENTS CHAPTER 7: SURGE PROTECTIVE DEVICES 7.10.3.4 SPD DUTY CYCLE TEST Type 1 SPDs, the test voltage and current shall be a combination of pulses at 6 kVp minimum at 3 kA and 6 kVp minimum at 10 kA. This test shall consist of 20 impulses at 6 kVp minimum / 10 kA, followed by 160 impulses at 6 kVp / 3 kA, followed by 20 impulses at 6 kVp minimum/ 10 kA respectively per polarity. The surges shall be conducted in succession with a maximum 60 second period between each surge. The total number of impulses being 400. Type 2 SPDs, the test voltage and current shall be a combination of pulses at 6 kVp minimum at 3 kA. This test shall consist of 400 impulses at 6 kVp minimum/ 3 kA. The surges shall be conducted in succession, with a maximum 60 second period between each surge. The total number of impulses being 400. Type 3 SPDs, the test voltage and current, shall be 6 kVp at 200 A, and 100 kHz (ringwave test) as described by IEEE C62.41. This test shall consist of 400 impulses conducted in succession with a maximum 60 second period between each surge. 7.10.3.5 PASS CRITERIA After Duty Cycle testing, the SPD is then allowed to cool to room temperature. The SPD is then subjected to the In 10 kA test as described in 7.10.2.2 on page 7-48. The VPL is measured and recorded. The current and Voltage waveform is plotted. The Pre-test In VPL is compared to the post-Test In VPL. The SPD passes the requirement if the post VPL is within 10% of the Pre VPL. For Type 3 devices if the SPD remains fully functional the unit passes. 7.10.4 MAXIMUM DISCHARGE CURRENT TEST 7.10.4.1 GENERAL The Maximum Discharge Current test is designed to test the maximum surge capability of the SPD. Maximum Discharge Current, Imax, for Class II Test - Crest value of a current through the SPD having an 8/20 waveshape and magnitude according to the test sequence of the Class II operating duty test. Imax for Type 1 and Type 2 SPDs is 160 kA. The SPD shall be mounted and connected as per the manufacturer's installation instructions. If manufacturer provides electrical conductors as a part of the product, testing and measurements shall be conducted on the full length of conductor provided If no electrical conductors are provided, testing and measurements shall be conducted at the terminal block Testing shall be performed in free air, 20 °C, ± 15 °C. During the testing, maintenance or modifications shall not be performed. All referenced surge currents are based on 8 × 20 uSec waveforms. 7.10.4.2 IN PRE-TEST (I NOMINAL CURRENT TEST) The SPD must be first be subjected to an In test impulse as described in IEC 61643-1. The Test current In is 10 kA 8x20uSec. The clamping voltage measured 150 mm (6 in.) outside of the enclosure. The VPL is then recorded and the current and voltage waveform plotted. 7-50 68P81089E50-B 9/1/05

STANDARDS AND GUIDELINES FOR COMMUNICATION SITES AC POWER LINE SPD TEST CERTIFICATION REQUIREMENTS 7.10.4.3 IMAX SURGE GENERATOR CALIBRATION The surge generator shall be calibrated as specified in UL 1449, Second Edition sub section 34.5. Tolerances and waveform are described in UL 1449, 2nd Edition section 34.5. This test is for Type 1, and 2 SPDs only. Calibration should be performed with the actual lead wires used to connect the module/s. This will allow the delivered current to closely match the short circuit current. 1. Calibrate the Surge Generator with an 8/20 msec short circuit current of 16 kA. Denote and record the charge voltage of the surge generator. Measure, record and plot the short circuit current including peak amplitude, rise time and duration. 2. Calibrate the Surge Generator with an 8/20 msec short circuit current of 40 kA. Denote and record the charge voltage of the surge generator. Measure, record and plot the short circuit current including peak amplitude, rise time and duration. 3. Calibrate the Surge Generator an 8/20 msec short circuit current of 80 kA. Denote and record the charge voltage of the surge generator. Measure, record and plot the short circuit current including peak amplitude, rise time and duration. 4. Calibrate the Surge Generator with an8/20 msec short circuit current of 120 kA. Denote and record the charge voltage of the surge generator. Measure, record and plot the short circuit current including peak amplitude, rise time and duration. 5. Calibrate the Surge Generator with an 8/20 msec short circuit current of Imax 160 kA. Denote and record the charge voltage of the surge generator. Measure, record and plot the short circuit current including peak amplitude, rise time and duration. 7.10.4.4 IMAX DISCHARGE TEST Connect the Positive Terminal of the Surge Generator to the L1 terminal or conductor of the SPD. Connect the Negative Terminal of the Surge Generator to the N terminal or conductor of the SPD. 1. Apply a surge current of 16 kA with a positive polarity, no AC applied. Measure, record and plot the delivered current. 2. Apply a surge current of 40 kA with a positive polarity, no AC applied. Measure, record and plot the delivered current. 3. Apply a surge current of 80 kA with a positive polarity, no AC applied. Measure, record and plot the delivered current. 4. Apply a surge current of 120 kA with a positive polarity, no AC applied. Measure, record and plot the delivered current. 5. Apply a surge current of Imax 160 kA with a positive polarity, no AC applied. Measure, record and plot the delivered current. 6. Repeat Steps 1 through 5 above for the remaining modes of protection of the SPD. 7. Apply thermocouples to the top and two-sides of the SPD. 8. Connect the SPD to the voltage, phase and power circuit configuration as detailed on the data label. 9. Energize the SPD for a period of 30 minutes. Measure and record the temperatures obtained. 68P81089E50-B 9/1/05 7-51

AC POWER LINE SPD TEST CERTIFICATION REQUIREMENTS CHAPTER 7: SURGE PROTECTIVE DEVICES<br />

7.10.3.4 SPD DUTY CYCLE TEST<br />

Type 1 SPDs, the test voltage <strong>and</strong> current shall be a combination of pulses at 6 kVp minimum at 3 kA<br />

<strong>and</strong> 6 kVp minimum at 10 kA. This test shall consist of 20 impulses at 6 kVp minimum / 10 kA,<br />

followed by 160 impulses at 6 kVp / 3 kA, followed by 20 impulses at 6 kVp minimum/ 10 kA<br />

respectively per polarity. The surges shall be conducted in succession with a maximum 60 second<br />

period between each surge. The total number of impulses being 400.<br />

Type 2 SPDs, the test voltage <strong>and</strong> current shall be a combination of pulses at 6 kVp minimum at 3 kA.<br />

This test shall consist of 400 impulses at 6 kVp minimum/ 3 kA. The surges shall be conducted in<br />

succession, with a maximum 60 second period between each surge. The total number of impulses being<br />

400.<br />

Type 3 SPDs, the test voltage <strong>and</strong> current, shall be 6 kVp at 200 A, <strong>and</strong> 100 kHz (ringwave test) as<br />

described by IEEE C62.41. This test shall consist of 400 impulses conducted in succession with a<br />

maximum 60 second period between each surge.<br />

7.10.3.5 PASS CRITERIA<br />

After Duty Cycle testing, the SPD is then allowed to cool to room temperature. The SPD is then<br />

subjected to the In 10 kA test as described in 7.10.2.2 on page 7-48. The VPL is measured <strong>and</strong> recorded.<br />

The current <strong>and</strong> Voltage wave<strong>for</strong>m is plotted. The Pre-test In VPL is compared to the post-Test In VPL.<br />

The SPD passes the requirement if the post VPL is within 10% of the Pre VPL. For Type 3 devices if the<br />

SPD remains fully functional the unit passes.<br />

7.10.4 MAXIMUM DISCHARGE CURRENT TEST<br />

7.10.4.1 GENERAL<br />

The Maximum Discharge Current test is designed to test the maximum surge capability of the SPD.<br />

Maximum Discharge Current, Imax, <strong>for</strong> Class II Test - Crest value of a current through the SPD having<br />

an 8/20 waveshape <strong>and</strong> magnitude according to the test sequence of the Class II operating duty test. Imax<br />

<strong>for</strong> Type 1 <strong>and</strong> Type 2 SPDs is 160 kA. The SPD shall be mounted <strong>and</strong> connected as per the<br />

manufacturer's installation instructions.<br />

If manufacturer provides electrical conductors as a part of the product, testing <strong>and</strong> measurements shall<br />

be conducted on the full length of conductor provided<br />

If no electrical conductors are provided, testing <strong>and</strong> measurements shall be conducted at the terminal<br />

block<br />

Testing shall be per<strong>for</strong>med in free air, 20 °C, ± 15 °C.<br />

During the testing, maintenance or modifications shall not be per<strong>for</strong>med.<br />

All referenced surge currents are based on 8 × 20 uSec wave<strong>for</strong>ms.<br />

7.10.4.2 IN PRE-TEST (I NOMINAL CURRENT TEST)<br />

The SPD must be first be subjected to an In test impulse as described in IEC 61643-1. The Test current<br />

In is 10 kA 8x20uSec. The clamping voltage measured 150 mm (6 in.) outside of the enclosure. The<br />

VPL is then recorded <strong>and</strong> the current <strong>and</strong> voltage wave<strong>for</strong>m plotted.<br />

7-50 68P81089E50-B 9/1/05

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